Evaporating apparatus



;(No Model.) 3 Sheets-Sheet l.

T. CRANE-Y. EVAPORATING APPARATUS.

Patented Jan. 1 1895..

3 Sheet 2 (No Model.)

T. GRANEY. WEVAPOR-ATING APPARATUS.

Patented Jan. 1, 1895.

(No Model. 3 Sheets-'8heet s. T. CRANEY. EVAPORATING APPARATUS.

Patented Jan. I, 1895.

Unites .Srnrne l nens? THOMAS CRANEY, OF BA CITY, MICHIGAN;

Evnecnnvioio nresesvcs.

SPECIFICATION forming part of. Letters Patent No. 531,912, dated January 1, 18295. Application filed Hersh 6, 1894. Serial No. 502584 (No model.)

ence being had therein to the accompanying.

drawings.

The invention consists in the construction and arrangement of a multiple of evaporating pans designed for use as independent vacuum pens or for double or triple expension evaporating apparatus.

The invention consists in the pecuiiarconstruction of the connection between the evapcrating pipes and steam chambers of the verions pans, whereby the order in which they are used may be varied at pleasure, or whereby any two of thescries may be used, cutting out the third one without in any way effect ing the continuous operation of the device, all as more fniiy hereinafter described.

In the drawings, Figure 1 is a front elevation of a} seriesof three vacuum pztnsenibodying my invention. Fig. 2 is 2, side elevation partly in section. Fig. 3 is a. horizontal section on a line directly above the steam chamber. Figs. 4, 5, 6, 7' and 8 are diagram plans showing the circulation of the vapor at dif ferent times, the pens being zirrsnged to be used in different series.

In the use of such apparatus, for instance, in the manufacture of salt itfrequently happens thet it is desirablet'o change the order in which the evaporating pens are used in double and triple expansion evaporator, and itelso often happens in the use of such zipporatus in certain localities that the pens have to be cleaned very frequently, and it is desirable to be able to-cnt out any one of the series temporarily or permanently for cleaning or repairing without disturbing in any way the continuous operation of the remaining pans and my arrangement of connection is intended to permit such use.

1, 2, and 3 are like evaporating pans of the following construction: 4. is a. casing. 5 is a steam chamber. [5 are circulating fines through. the chamber. 7 is the expansion. chamber of the pan, and 8 the settling chamber terminating in the leg 9, which at its foot is provided with a. snitehie elevator 10, for carrying oflithe accumulated product. 11 is the vapor discharge pipe from the evaporating chamber, terminating in s. vertical leg 12,

in which is a suitable condenser 13. is is the steam supply pipe. 15 are valved branches therefrom connecting into the steam cheese bars 5 of each of the pans. i6 is the brine inlet. 17 is the outlet pipe for the Writer of condensation from the steam chamber. Erich of the evaporating pens thus described is complete in itself, but as before described.

1 and the vapor therefrom used in No.

the vapor in No. 2 in No. 3,or this order may be reversed, and the middle one may be used with the high pressure and either No. i. or

No. 3 f0r the second or third evaporation, or

any of the pans can be cat out and the operetion continued in the remaining two. i

18 is e longitndis-i connecting pipe, into valved branches 19, 20 and Qi in which the vapor discharge pipes 11. oi? the three pans connect. This pipe is connected with the pen No. 1 by the valve controlled pipe 22 and with the pan No. 2 by the valve controlled pipes 23, and iii, and with the pen No. 3 by the vsive controlled pipe 26 and 27 are valve control ed pipes connecting the branch 20 with the pipes 522 end 25 respectively and form a cross pipe or hypass'. Now by examining Figs. l, 5, 6, 7 and S connection with the arrangement of valves shown in Pi 3 the different series into which the pans may be combined will readily be understood'.

Fig. t shows the arrangement in which the high pressure pan is No. 2; pen No. 1 is the second in the series and pen No. 3 the third. Fig. 5 shows the arrangement of the valves whereby the order of the series is through pans No. 2, No. 3 and No. 1'. Fig. 6 shows the series No.1,No. f2 and N Fig. 7 shows the series No. 3; No. 2 and No. i. and Fig. 8 shows the series No. 3 and No. 1 with No. 2 cut out.

\Vhnt I claim as my invention is-- In an evaporating apparatus, the cembination with a plurality of independently operative evaporating pans, means for independentiy heating each pain, vapor discharge pipes 5 for the respective pans; in connecting pipe into which the yapor discharge pipes lead, pipes lee jling fjom the connectipgpipe into theheating chambers of the pans, a cross-pipe or by-pass bcvfinecting an outer pipe hich 10 leads from the connecting pipe intoa h ating chamber with an intermediate discharge pip e, and valves in thepipes, 'subsitantially as described.

In testimony whereof I affix mysignature in presence o f two witnesses.

THOMAS ORANEY. T

Witnesses:

M. 13 ODQGHERTY,

, QRBARTHEL. 

